SM0101
AXF300E
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
September 2000September 2000
September 2000September 2000
September 2000
MINI COMPONENT HI-FI SYSTEMMINI COMPONENT HI-FI SYSTEM
MINI COMPONENT HI-FI SYSTEMMINI COMPONENT HI-FI SYSTEM
MINI COMPONENT HI-FI SYSTEM
HITHIT
HITHIT
HIT
AA
AA
A
CHI CONSUMER PRCHI CONSUMER PR
CHI CONSUMER PRCHI CONSUMER PR
CHI CONSUMER PR
ODUCTS (S)ODUCTS (S)
ODUCTS (S)ODUCTS (S)
ODUCTS (S)
CONTENTSCONTENTS
CONTENTSCONTENTS
CONTENTS
SPECIFICATIONS .....................................................................................................................................................3
SERVICE POINTS .....................................................................................................................................................4
ADJUSTMENTS .........................................................................................................................................................10
WIRING DIAGRAMS..................................................................................................................................................11
PRINTED WIRING BOARDS ....................................................................................................................................14
BLOCK DIAGRAM .....................................................................................................................................................25
CIRCUIT DIAGRAM...................................................................................................................................................29
EXPLODED VIEW......................................................................................................................................................53
REPLACEMENT PARTS LIST ..................................................................................................................................56
CAUTIONCAUTION
CAUTIONCAUTION
CAUTION
DANGERDANGER
DANGERDANGER
DANGER
Invisible laser radiation when open and interlocks failed or defeated. AVOID DIRECT EXPOSURE TO BEAM.Invisible laser radiation when open and interlocks failed or defeated. AVOID DIRECT EXPOSURE TO BEAM.
Invisible laser radiation when open and interlocks failed or defeated. AVOID DIRECT EXPOSURE TO BEAM.Invisible laser radiation when open and interlocks failed or defeated. AVOID DIRECT EXPOSURE TO BEAM.
Invisible laser radiation when open and interlocks failed or defeated. AVOID DIRECT EXPOSURE TO BEAM.
GEFAHRGEFAHR
GEFAHRGEFAHR
GEFAHR
Unsichtbare Laser-Strahlung wenn Interlock (Blockierung) funktionsuntüchtig oder abgeschaltet.Unsichtbare Laser-Strahlung wenn Interlock (Blockierung) funktionsuntüchtig oder abgeschaltet.
Unsichtbare Laser-Strahlung wenn Interlock (Blockierung) funktionsuntüchtig oder abgeschaltet.Unsichtbare Laser-Strahlung wenn Interlock (Blockierung) funktionsuntüchtig oder abgeschaltet.
Unsichtbare Laser-Strahlung wenn Interlock (Blockierung) funktionsuntüchtig oder abgeschaltet.
UNMITTELBAREN KONTAKT MIT DEM STRAHL UNBEDIGT VERMEIDEN.UNMITTELBAREN KONTAKT MIT DEM STRAHL UNBEDIGT VERMEIDEN.
UNMITTELBAREN KONTAKT MIT DEM STRAHL UNBEDIGT VERMEIDEN.UNMITTELBAREN KONTAKT MIT DEM STRAHL UNBEDIGT VERMEIDEN.
UNMITTELBAREN KONTAKT MIT DEM STRAHL UNBEDIGT VERMEIDEN.
DANGERDANGER
DANGERDANGER
DANGER
Faire très attention aux radiations émises par le faisceau laser invisible au défaillance du verrouillage.Faire très attention aux radiations émises par le faisceau laser invisible au défaillance du verrouillage.
Faire très attention aux radiations émises par le faisceau laser invisible au défaillance du verrouillage.Faire très attention aux radiations émises par le faisceau laser invisible au défaillance du verrouillage.
Faire très attention aux radiations émises par le faisceau laser invisible au défaillance du verrouillage.
NE JAMAIS S'EXPOSER DIRECTEMENT AU FAISCEAU.NE JAMAIS S'EXPOSER DIRECTEMENT AU FAISCEAU.
NE JAMAIS S'EXPOSER DIRECTEMENT AU FAISCEAU.NE JAMAIS S'EXPOSER DIRECTEMENT AU FAISCEAU.
NE JAMAIS S'EXPOSER DIRECTEMENT AU FAISCEAU.
VARNINGVARNING
VARNINGVARNING
VARNING
När apparaten öppnats och skyddsanordningen felar eller satts ur funktion förekommer osynlig laserstrålning.När apparaten öppnats och skyddsanordningen felar eller satts ur funktion förekommer osynlig laserstrålning.
När apparaten öppnats och skyddsanordningen felar eller satts ur funktion förekommer osynlig laserstrålning.När apparaten öppnats och skyddsanordningen felar eller satts ur funktion förekommer osynlig laserstrålning.
När apparaten öppnats och skyddsanordningen felar eller satts ur funktion förekommer osynlig laserstrålning.
UNDVIK DIREKT BESTRÅLNING.UNDVIK DIREKT BESTRÅLNING.
UNDVIK DIREKT BESTRÅLNING.UNDVIK DIREKT BESTRÅLNING.
UNDVIK DIREKT BESTRÅLNING.
ADVARSELADVARSEL
ADVARSELADVARSEL
ADVARSEL
Ñår apparatet åbnes og beskyttelsesanordningen ikke virker eller sættes un af funktion, forekommer der usynlig laserstråling.Ñår apparatet åbnes og beskyttelsesanordningen ikke virker eller sættes un af funktion, forekommer der usynlig laserstråling.
Ñår apparatet åbnes og beskyttelsesanordningen ikke virker eller sættes un af funktion, forekommer der usynlig laserstråling.Ñår apparatet åbnes og beskyttelsesanordningen ikke virker eller sættes un af funktion, forekommer der usynlig laserstråling.
Ñår apparatet åbnes og beskyttelsesanordningen ikke virker eller sættes un af funktion, forekommer der usynlig laserstråling.
UNDGÅ DIREKTE BESTRÅLING.UNDGÅ DIREKTE BESTRÅLING.
UNDGÅ DIREKTE BESTRÅLING.UNDGÅ DIREKTE BESTRÅLING.
UNDGÅ DIREKTE BESTRÅLING.
ADVARSELADVARSEL
ADVARSELADVARSEL
ADVARSEL
Når denne delen er apen som følge av at låsen er utkoplet eller ikke fungerer, eksisterer det usynlig laserstråling.Når denne delen er apen som følge av at låsen er utkoplet eller ikke fungerer, eksisterer det usynlig laserstråling.
Når denne delen er apen som følge av at låsen er utkoplet eller ikke fungerer, eksisterer det usynlig laserstråling.Når denne delen er apen som følge av at låsen er utkoplet eller ikke fungerer, eksisterer det usynlig laserstråling.
Når denne delen er apen som følge av at låsen er utkoplet eller ikke fungerer, eksisterer det usynlig laserstråling.
UNNGÅ Å BLI UTSATT FOR DIREKTE BESTRÅLING!UNNGÅ Å BLI UTSATT FOR DIREKTE BESTRÅLING!
UNNGÅ Å BLI UTSATT FOR DIREKTE BESTRÅLING!UNNGÅ Å BLI UTSATT FOR DIREKTE BESTRÅLING!
UNNGÅ Å BLI UTSATT FOR DIREKTE BESTRÅLING!
VARIOITSVARIOITS
VARIOITSVARIOITS
VARIOITS
Laite lähettää näkymätöntä lasersäteilyä, kun se avataan ja kun sisäiset turvalukot eivät toimi.Laite lähettää näkymätöntä lasersäteilyä, kun se avataan ja kun sisäiset turvalukot eivät toimi.
Laite lähettää näkymätöntä lasersäteilyä, kun se avataan ja kun sisäiset turvalukot eivät toimi.Laite lähettää näkymätöntä lasersäteilyä, kun se avataan ja kun sisäiset turvalukot eivät toimi.
Laite lähettää näkymätöntä lasersäteilyä, kun se avataan ja kun sisäiset turvalukot eivät toimi.
VARO JOUTUMASTA ALTTIIKSI SÄTEILYLLE.VARO JOUTUMASTA ALTTIIKSI SÄTEILYLLE.
VARO JOUTUMASTA ALTTIIKSI SÄTEILYLLE.VARO JOUTUMASTA ALTTIIKSI SÄTEILYLLE.
VARO JOUTUMASTA ALTTIIKSI SÄTEILYLLE.
MD MECHANISM MDM-99X
CD MECHANISM CDV300DW
AXF300EBS
AXF300UC
AXF300W
AXF300WUN
HMDR50
– 2 –
AX-F300
Check that exposed parts are acceptably insulated from
the supply circuit before returning the repaired instrument
to the customer.
••
••
•
Checking methodChecking method
Checking methodChecking method
Checking method
Measure the resistance value between the both poles of
attachment cup (Power supply plug) and the exposed
parts (Parts such as Knob, Cover, etc. where the cus-
tomer is easy to touch.) and check that the resistance
value is 500 kohms or more.
INSTRUMENT
(Exposed part)
Insulation tester (DC 500V)
SAFETY PRECAUTIONSSAFETY PRECAUTIONS
SAFETY PRECAUTIONSSAFETY PRECAUTIONS
SAFETY PRECAUTIONS
The following precautions should be observed when servicing.
1. Since many parts in the unit have special safety-related characteristics, always use genuine Hitachi’s replacement
parts. Especially critical parts in the power circuit block should not be replaced with other makers. Critical parts
are marked with in the circuit diagram and printed wiring board.
2. Before returning a repaired unit to the customer, the service technician must thoroughly test the unit to ascertain
that it is completely safe to operate without danger of electrical shock.
– 3 –
AX-F300
SPECIFICATIONS
AM-FM TUNER AMPLIFIER (HTA-R100)
Reception frequency band: UC (FM:87.5~108.0MHz(100kHz step) AM:520~1710kHz(10kHz step))
E,EBS (FM:87.50~108.00MHz(50kHz step) MW:522~1611kHz(9kHz step) LW:153~281kHz(1kHz step))
W (FM:87.50~108.00MHz(50kHz step) AM:522~1611kHz(9kHz step) 520~1710kHz(10kHz step))
WUN (FM:76.00~108.00MHz(50kHz step) AM:522~1629kHz(9kHz step) 520~1710kHz(10kHz step))
Rated output power: 40 W + 40 W (6W/ohms, 1kHz, T.H.D. 10%)
Audio input / output jacks: CD input jacks, TAPE input/output jacks, AUX input jacks, MD input/output jacks,
PRE OUT (MONO) jack, headphones jack
Power supply: E,EBS : AC 230 V, 50 Hz
UC : AC 120 V, 60 Hz
W,WUN : AC 110~127 V, 50/60 Hz AC 220~240 V, 50/60 Hz
Power consumption: 74 W (ECO-ON mode : 0.8 W)
Maximum external dimensions: 210 (W) ∞ 96.5 (H) ∞ 350 (D) mm (including feet, controls and terminals)
Weight: 4.5 kg
CD CHANGER (DA-R100)
Sampling frequency: 44.1kHz
Optical source: Semiconductor
Power supply: E,EBS : AC 230 V, 50 Hz
UC : AC 120 V, 60 Hz
W,WUN : AC 110~127 V, 50/60 Hz AC 220~240 V, 50/60 Hz
Power consumption: 12 W
Maximum external dimensions: 210 (W) ∞ 96.5 (H) ∞ 340 (D) mm (including feet, controls and terminals)
Weight: 3.2 kg
SPEAKER (HS-R30)
System: 2 way BASS Reflex Speaker System
Woofer: 10 cm ∞ 1
Tweeter: 5 cm ∞ 1
Impedance: 6 ohms
Maximum external dimensions: 150 (W) ∞ 275 (H) ∞ 227 (D) mm
Weight: 3.0 kg (1 speaker)
TIMER
System: Digital Quartz Clock
Display Format: 12-hour cycle (UC DEST) 24-hour cycle (other DEST)
Timer Accuracy: Within 60 seconds at monthly rate
REMOTE CONTROL
Remote control system: Infrared pulse
Power supply: Two DC 1.5V R6P/AA batteries
Maximum external dimensions: 54 (W) ∞ 27 (H) ∞ 172.5 (D) mm
Weight: 145g (including batteries)
MINI DISC RECORDER (HMD-R50)
Type: MiniDisc digital audio system
Wow & flutter: Below measurable limits (±0.001% W. peak or less)
Sampling frequency: 44.1 kHz
Recording method: Magnetic modulation overwriting
Light source: Semiconductor Laser
Power supply: E,EBS : AC 230 V, 50 Hz
UC : AC 120 V, 60 Hz
W,WUN : AC 110~127 V, 50/60 Hz AC 220~240 V, 50/60 Hz
Power consumption: 14 W
Maximum external dimensions: 210 (width) ∞ 96.5 (height) ∞ 320 (depth) mm (including feet, controls and terminals)
Weight: 2.6 kg
Specifications are subject to change or performance improvement without notice.
– 4 –
AX-F300
SERVICE POINTS
AM-FM TUNER AMPLIFIER (HTA-R100)
1. Removal of Cover
(1) Remove 2 screws from both sides.
(2) Remove 5 screws from the rear plate.
2. Removal of Front Panel
(1) Remove 4 screws from the bottom side of the front panel.
(2) Remove 2 screws from both sides.
(3) Remove screw to remove the ground wire. (E DEST ONLY).
(4) Remove the connectors , , and .
(5) Remove the Front Panel by releasing the pawl on both sides.
Pawl
Pawl
(E DEST ONLY)
– 5 –
AX-F300
3. Removal of Rear Panel
(1) Remove 9 screws from the rear panel.
(2) Remove the connector .
4. Removal of Front P. W. Board
(1) Remove 2 screws and then the tone P. W. board.
(2) Remove the volume knob assy, remove the nut and remove the volume P. W. board.
(3) Remove 9 screws .
5. Removal of Main P. W. Board
(1) Lift up the TU P. W. board and remove it from the main P. W. board.
(2) Remove 2 screws from the top side of the main P. W. board.
(3) Remove 4 screws from the bottom side of the chassis.
(4) Remove the 4 P. W. board holders from the chassis via the bottom side of the chassis.
TU P. W. board
Control
Nut
– 6 –
AX-F300
CD CHANGER (DA-R100)
1. Removal of Cover
(1) Remove 2 screws from both sides.
(2) Remove 3 screws
from the rear panel.
2. Removal of Front Panel
(1) Remove 2 screws from both sides.
(2) Remove 3 screws from the bottom side of the front panel.
(3) Remove the Front Panel by releasing the pawl on both sides.
(4) Remove the flat cable from the main P. W. board.
3. Removal of Rear Panel
(1) Remove 7 screws from the rear panel.
Pawl
Pawl
– 7 –
AX-F300
4. Removal of CD Mechanical-Unit Assembly, Main P. W. Board and Motor P. W. Board
(1) Remove one each of screws and from the main P. W. board on the side.
(2) Remove 2 screws from the top side of the mechanical unit.
(3) Remove 2 screws from the bottom side of the chassis.
(4) Remove the connectors
, , and of the main P. W. board.
(5) Remove the connector
of the P. T. P. W. board.
(6) Remove 1 screw from the top side of the P. T. cover and detach the power transformer from the chassis.
(7) Remove 1 screw of the ground wire.
(8) Remove the connectors , and of the motor P. W. board from the main P. W. board.
(9) Remove 2 screws from the motor P. W. board.
(10)Remove the solder from the four places of the soldering section of the motor.
(11)Remove the connectors PG402 and 403 of the motor P. W. board.
PG402
PG403
– 8 –
AX-F300
MINI DISC RECORDER (HMD-R50)
1. Removal of Cover
(1) Remove 2 screws from both sides.
(2) Remove 6 screws
from the rear panel.
2. Removal of Front Panel
(1) Remove 2 screws from both sides.
(2) Remove 4 screws from the bottom side of the front panel.
(3) Remove the Front Panel by releasing the pawl on both sides.
(4) Remove the flat cable from the main P. W. board.
3. Removal of Rear Panel
(1) Remove 7 screws from the rear panel.
FLAT
CABLE
Pawl
Pawl
– 9 –
AX-F300
4. Removal of MD Mechanical-Unit Assembly
(1) Remove 4 screws .
(2) Remove the flat cable from the main P. W. board.
5. Removal of Main P. W. Board
(1) Lift up the I/O P. W. board and remove if from the main P. W. board.
(2) Remove 6 screws .
FLAT
CABLE
I/O P. W. Board
– 10 –
AX-F300
ADJUSTMENTS
Measuring Instruments Necessary for Adjustments
• DC voltmeter
• Screwdrivers for adjustments
Before adjustments, perform the following setting in the receiver section (HTA-R100).
Note: Making adjustments without performing the following setting may result in damage of power transistors.
(1) Power switch : OFF
(2) Volume knob : MIN
(3) Function switch : AUX
(4) Speaker : Open
(5) VR502L/R : Minimum
1. Idle Current Adjustment
(1) Connect the DC voltmeter to PG502. (Refer to the connection diagram.)
(2) Turn on the power and adjust VR502L (on the left) and VR502R (on the right) so that the measured value of the voltme-
ter can be within the range of 2 ± 0.5 mV.
PRE AMP PWB
PG502
DC Voltmeter
DC Voltmeter
+ –– +
VR502R VR502L
– 11 –
AX-F300
WIRING DIAGRAMS
AM-FM TUNER AMPLIFIER (HTA-R100)
W004(ORG)
W006
(BRN)
W007
(BRK)
W002(GRY)
W010(YEL)
P2B
PG001
P3A
CN504
SPEAKER PWB
VOLTAGE SELECTOR P.W.B
(W/WUN ONLY)
*10A
*P9A
*P8B
CN505
*P4A/P6A
CN505
P2A
PG003PG002
MAIN PWB
PG504
CN502ACN501A
CN101B
PG402
CN103B
CN104B
PG301
*P4B/
P7A
*P5A P3B
CN002 CN003
P10B
P9B P8B
P5B
P6B P7B
PT PWB
CN104A CN103A
W415
W001
DISP PWB
CN101A
TU PWB
CN502BCN501B
PG503
CN503 CN401
CN402
VOLUME PWB
PG401
TONE PWB
(LUG TERMINAL)
(LUG TERMINAL)
CN301
PRE-AMP PWB
AC
CORD
W101
AP1
W003(BLUE)
W005(ORG) W009(RED)
– 12 –
AX-F300
CD CHANGER (DA-R100)
CN404
PG103
PG102
PG101
PG401
PG901
(W/WUN ONLY)
PG452
PG453
PG451
MAIN PWB
1
1
1
1
11
1
(PINK)
PG801
CN452
CN453
CN451
CN421
PG454
(WN/WUN ONLY)
(WN/WUN ONLY)
PG802
MOTOR PWB
FL PWB
18P BTEM CONN
18P BTEM CONN
8P BTEM CONN
1
1
(BLK)
1
W101
29P FFC CABLE
PG403
PG402
6P MX CONN
8P PH CONN
7P PH CONN
2P TXL CONN
1
1
1
5P PH CONN
5P TXL CONN
PG404
W401B
W402B
W403B
W401(BRN)
W402(YEL)
W403(RED)
W403A
W402A
W401A
CN401
PG001
PT PWB
VIDEO PWB
(W/WUN ONLY)
VOL-SEL PWB
(W/WUN ONLY)
VIDEO MODULE
(W/WUN ONLY)
AC CORD
1
(BRN)
CN901
(WN/WUN ONLY)
4P TXL CONN (W/WUN ONLY)
1
PG421
1
AP1
5P MX CONN
6P MX CONN
3-DISC
CHANGER
(SOLDER)
(SOLDER)
1
(BRN)
1
1
1
1
1
– 13 –
AX-F300
MINI DISC RECORDER (HMD-R50)
PG002
AC CORD
PG001
PG301 CN301
B to B
CN501A
CN1501
CN701B
PG101
CN401
#073
28P FFC
CABLE
#W201
RED WHT
CN002-1
CN002-2
CN101
PT PWB
MAIN PWB
MD MECHA UNIT
I/O
PWB
CN701A
FL PWB
–14–
AX-F300
PRINTED WIRING BOARDS
• AM-FM TUNER AMPLIFIER (HTA-R100)
MAIN PWB
Component Side
–15–
AX-F300
Soldering Side
–16–
AX-F300
PRE-AMP PWB
Component Side Soldering Side
PT PWB
Component Side Soldering Side
–17–
AX-F300
SP PWB
Component Side SolderingSide
TONE PWB
Component Side SolderingSide
VOL PWB
Component Side SolderingSide
– 18 –
AX-F300
DISPLAY PWB
TU PWB
Soldering Side
Component Side
Soldering Side
Component Side
– 19 –
AX-F300
• CD CHANGER (DA-R100)
MAIN PWB
Soldering Side
Component Side
FL PWB
Soldering Side
Component Side
– 20 –
AX-F300
MONITOR PWB
PT PWB
Component Side Soldering Side
Soldering Side
Component Side
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
/
